Cranks, why no start?
Usually because of an ignition or gas related problem. You need to check for spark at the plugs and for gas at the engine.
A quick method to check for a gas problem is to spray some starting fluid into the air intake on the throttle body. Take off the big boot from air filter housing to the engine, spray a shot of fluid into the engine, then try to start it. If it fires up and tries to run from the fluid for a few seconds, then you know it is a fuel problem. Maybe the fuel pump has quit working, or the fuel filter is clogged. If both are good, maybe a fuel injector circuit problem, less common but possible.
If nothing happens from the starting fluid, it may be ignition related-not getting spark. Pull off a spark plug wire from a spark plug and hold the plug wire end terminal about 1/4 inch from an engine bolt or ground. Have someone crank the engine over from the key and watch for a consistent, blue, snapping spark. If no spark, test a few other plug wires to verify no spark at all. So it is not just one ignition coil not working, but none of them produce spark. No spark means the ignition system needs diagnosing. Sometimes it is the ignition control module that goes bad-it can be tested at any parts store. Post back and we can go from there.
Jan 31, 2013 |
2000 Isuzu Rodeo